speed numbers on a v-20

[bigshrimpin]

1993 2.5L merc 150 vs. 1993 2.6L yamaha vertical reed 150

[bigshrimpin]

cterrebonne - Find a Merc 245 or 260 and you'll be in bid'ness.
Even though I perfer mercs . . . those 220 specials with the horizontal front, big carbs, and compression up around 130/140psi those motors are pretty strong :)

I just think it's gonna be difficult to get to 55 even with the little pad on the bottom of the v20.

[cterrebonne]

thanks for posting those spec sheets on the v20 big shrimpin. i noticed the specs and that yamaha compared to the merc is a dog. the merc 200 hit 50.4 which isnt bad at all but i own a 200 2.5l merc and compared to the 3.1 omc brp block its a sissy (which i also own). its crazy because when putting then both on the dyno its not even close between the two engines. but i do agree with you shrimpin 55 will be hard even with the 225 ficht.

[Pipe_Dream]

When we repowered and the engine had less than 10 hours on it, we eeked out a 50 mph reading, wide open with the engine trimmed waay up. I've not been able to reproduce that since then, even just a few weeks ago with new bottom paint. Mid-40s seems to be the best I can do, but as was said earlier it feels pretty dicey. A cross-wind gust feels like it's going to put her on her side! But I rarely run her anywhere close to wide open, unless it's a calm day and I just want to let her stretch.

[cterrebonne]

200 hpdi is that a 2.6litre version? thats odd to loose 5mph like you did you might want to check on the prop either that or fuel and equip weight is slowing it down. from what im reading i should at least be able to squeeze 50.